Dave,
I was in the same basic boat, and I just decided to use a PC. I installed everything on Linux, rolled up a little web front end, and voila! I'm able to record the preaching at church.
Ours comes off the board into a cheap (free!) Sound Blaster, but you could get a sound card with balanced inputs and phantom power (I think there are some available for $100 or under), and Bob would, indeed, be your uncle.
As far as recording, I use Linux, since there are no copyright issues on the software, and I'm cheap. One of the problems with the packages that I found for Win/Mac was that they did not record for long enough (1+ hours), or they were pretty expensive.
I also thought most packages were too complicated.
Anyhow, I'd be happy to send you a copy of the software if you're not afraid of running Linux.
Brad